PL Flange 1> ASTM,AISI,DIN,JIS,SUS 2>310S,309S,316,316L,317,317L,321,304,304L,201,202 3>Best quality and price 1.Item: PL Flange2.Standard: ASTM,JIS,DIN,EN,GB,KS etc.3.Material : 310S,309S,316,316L,317,317L,321,304,304L,201,202 etc.4.Pressure class: 150LB,300LB,400LB,600LB,900LB,1500LB etc.5.Usage: For connection6.Contact : if you have any requirement,please don't hesitate to contact us .